Tar-extractor and scrubber for gas



J. WELLS.

EAR EXTRACIOR AND SCRUBBUZ FOR GAS.

APPLICATION FILED SEPT I3, 1929.

'Lfimfi u Patented Mar 29, 1921.

- To (ZZZ whom it may concern:

barren estates storm warns, o1" earns, EGYPT.

Specification of Letters Patent.

TAR-EXTRACTOE AND SCR'UBBER FER. GAS

Patented Mar. 2e, 192i.

Application filed September 13, 1918. Serial No. 323,557.

tion.

i taining the spindle then This invention relates to tar extractors, as scrubbers and like apparatus for puri- Tying gas.

According to this invention the tar-extractor comprises one or preferably a plurality of superposed extractionchambers, preferably having central inlets and outlets, through which the gas to be purified is passed, and in each of which there is a. series of paddles or vanes adapted to be rotated at a high speed on a vertical driving shaft. The paddles or vanes are pref erably' mounted on disks which serve as baffies for controlling the course of the gas, and which, together with the top' and bottom walls of the extraction-chambers, are inclined downward from their center, 0. 9. they are of conical or dished form, so that the gases to be purified, entering the bottom of the chambers at the central inlet, are driven outward at a high velocity by the paddles at the lower sides of the disks, and

ass around the periphery of the paddle-disk and back to the central outlet, traveling against the centrifugal force, where they pass into the next extraction chamber, and so on, the washing water falling on to the top of the rotary disks preferably near the center thereof, and, together with the 'tar and other liquid removed from the gas,

passing out through outlets in the peripheries of the chambers. V

The several superposed chambers forming the purifying apparatus are preferably connectcd together by socket andfaucet joints so as to permit the erection of the apparatus without recourse to machining.

In the drawing attached hereto, which is a vertical central section, the base A is a cylindrical casting or structure carrying a foot-step bearing B, supporting a s)indle (3 with a further or u per bearing main- 8 in a vertical and central position in regard to the base A. The base is also provided with a *sump or oil bath providing lubrication for the worm, and

worm-wheel F and E substantially as shown in the drawing. 7

In the upper part of the base an inlet for the gas is provided at G. The upper edge of the body A receives the first of the tar extraction chambers H, which is a casting fitting into the body A, on the principle of a spigot and faucet joint, the joint being made in the ordinary manner with asbestos cord or special cement. The tar extractionchamber H is provided with an outlet I for the, discharge of water and tar extracted b the centrifugal force of the paddles J whic are attached to a bafile Q fixed to the spindle C, above the first of the tar extractionchambers H.

Additional chambers together with their paddles J may be fitted so as to make the extraction take place in one or several stages as desired. each chamber H being built on the principle of a spigot and faucet or socket.

Above the upper tar extractor chamber H is a special chamber providing for the gas outlet L, the support of the gas scrubber M and a passage N'for the passing of the gas from theupper tar extraction chamber M has a circular perforated plate 0 resting in special chamber'K and the scrubber chamber M is jointed to the special chamber K with an ordinary spigot and faucet joint. The scrubber chamber Mis covered with a plate P and is filled with sawdust, or other convenient material, for the final purification of the'gas after its assage through the extractor chambers H, Y

The chambers ll, H and baffles Q, Q, are

of conical or dished form and are arranged with their convex surfaces uppermost so that water supplied through pipes R, R: to

thecenter of the upper surfaces of the baffies Q. Q, will run down toward thcperiphcry of the same and fall on to the lower wall of the chamber whence it drains into outlets I. l

The operation of my improved tar-extractor is as follows:-

The gas to be cleaned enters the extractor at G passing upward into the chamber H where it turns on meeting the rotary baflie Q and is forced outward by the rapidly revoiving paddles J the gas then passes upward through the paddles J on the top or.

upper side of the bafie Q and into the next succeeding extractor chamber or chambers In the passage of the gas on the upper sides of the bafiles Q a jet oi" water is introduced through the water service pipes R. The water and tar are allowed to escape through the tar outlets I, through suitable seals to prevent egress ot' the gases.

After passing through the last or upper stage of the extractor chambers the gases pass by way of the pipe X and thence downward through the sawdust scrubber to the outlet L. from which outlet the gases are led by any suitable means to the engine or to other uses.

What I claim as my invention and desire to secure by Letters Patent is 1. In a tar extractor for gas, a plurality of superposed and separable castings of dislr shape having upwardly directed conical bottoms providing gas chambers therebetween and having central openings at the apices of said bottoms and peripheral outlet openings, a shaft rising through the (nenings in said castings a plurality of ba es carried by the shaft and lying between the castings in said gas chambers, and paddles on the baflles for agitating the gas passing through said castings and about said baf- 2. In a tar extractor for gas, a gas chamber unit comprising a casting having an upardly directed conical bottom with a central opening at its apex and outlet openings in its outer wall. said casting having an annular joint adapted to receive a superposed casting and provided with a depending portion adapted to fit in the annular joint of a subjacent casting. whereby a plurality of gas chamber castings may be assembled in a single structure corresponding to the number of stages desired.

JOHN WELLS. 

